Home / 1,020,543.20-1,530,840-488,120.48

Finding the Fourth Proportional to 1,020,543.20, 1,530,840 and 488,120.48

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Solution

The fourth proportional to 1,020,543.20, 1,530,840 and 488,120.48 is: 732,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,543.20 : 1,530,840 = 488,120.48 : x
  2. Step 2: Convert to fraction form
    1,020,543.20/1,530,840 = 488,120.48/x
  3. Step 3: Cross multiply
    1,020,543.20x = 1,530,840 × 488,120.48
  4. Step 4: Simplify right side
    1,020,543.20x = 747,234,355,603.20
  5. Step 5: Solve for x
    x = 747,234,355,603.20/1,020,543.20
  6. Step 6: Final answer
    x = 732,192.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.